EP2348164A2 - Pressure bar for a façade structure - Google Patents

Pressure bar for a façade structure Download PDF

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Publication number
EP2348164A2
EP2348164A2 EP11151676A EP11151676A EP2348164A2 EP 2348164 A2 EP2348164 A2 EP 2348164A2 EP 11151676 A EP11151676 A EP 11151676A EP 11151676 A EP11151676 A EP 11151676A EP 2348164 A2 EP2348164 A2 EP 2348164A2
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EP
European Patent Office
Prior art keywords
core
pressure strip
outer part
facade
insulating element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP11151676A
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German (de)
French (fr)
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EP2348164A3 (en
EP2348164B1 (en
Inventor
Rainer Vögele
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Raico Bautechnik GmbH
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Raico Bautechnik GmbH
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Publication date
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Publication of EP2348164A2 publication Critical patent/EP2348164A2/en
Publication of EP2348164A3 publication Critical patent/EP2348164A3/en
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Publication of EP2348164B1 publication Critical patent/EP2348164B1/en
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    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
    • E04B2/88—Curtain walls
    • E04B2/96—Curtain walls comprising panels attached to the structure through mullions or transoms
    • E04B2/967—Details of the cross-section of the mullions or transoms

Definitions

  • the invention relates to a pressure strip for a facade construction and a facade construction with such a pressure strip.
  • Pressure strips of the type mentioned above are e.g. used for fastening glass panes or other facade elements to supporting elements of facade and conservatory systems in a mullion / transom construction. They usually have one or more grooves for seals and passages for screws or other fasteners.
  • the pressure bars are usually made of thermoplastic or aluminum. Although pressure bars made of aluminum have a high strength, but have only poor thermal insulation properties, so that always additional insulation elements must be attached to the pressure bars to improve the thermal insulation.
  • thermoplastic pressure strips are susceptible to heat and are only of limited suitability for the permanent point loads occurring in screw connections. Another disadvantage is that they can not be manufactured in one piece with correspondingly insulating plastics.
  • a pressure strip for a building facade or a roof is known in which an insulating strip and a sealing strip are formed integrally with the pressure strip.
  • the insulating strip, the sealing strips and the pressure strip are made of a rubber-like material or of thermoplastic material.
  • the object of the invention is to provide a pressure strip for a facade construction and a facade construction with such a pressure strip, which allow improved thermal insulation.
  • the pressure strip according to the invention is designed as a plastic profile with a core made of foam material and an outer part surrounding the core, wherein the outer part has a relation to the core higher hardness.
  • the e.g. made of polyurethane foam core has a low conductivity and therefore allows good thermal insulation.
  • the outer part made of a harder material provides the required stability and secures the mechanical properties required for fastening.
  • the core can be made by introducing a suitable thermosetting foam material into a first mold. After curing, the foam core thus produced can be inserted into a further mold for producing the outer part surrounding the core.
  • the pressure strip may have a molded-on insulating element which projects into a rebate space between the facade elements.
  • the insulating element is expediently also made of a hardening polyurethane foam or other well-insulating foam material and may be foamed to an approach of the outer part.
  • the core and the insulating element may be interconnected and foamed together.
  • the pressure bar can be arranged both on the inside and on the outside of the facade elements and provided with seals.
  • An An horrin described above can in a facade construction for the attachment of the example designed as insulating glass facade elements on a
  • the pressure bar can be arranged both on the inside and outside of the facade elements and provided with seals.
  • the in the FIGS. 1 to 6 Facade structures shown include a designed as a support profile support member 1, are attached to the two executed as insulating glass panels facade elements 2a and 2b sealed by means of a pressure strip 3 and here as fastening screws fasteners 4 via inner and outer seals 5 and 6.
  • the support member 1 forms, for example, a post or bar of a post-and-beam construction, with the facades, conservatories, roof structures or the like. Can be produced.
  • the facade elements 2a and 2b are executed in the embodiments shown as insulating glass panes with a plurality of spacers 7 spaced from each other glass sheets 8. Instead of insulating glass panes However, other facade elements can be held on the support element 1 with the help of 3 Andruckruct.
  • support member 1 includes a facade elements 2a and 2b facing transverse web 9, on which a projecting into a rebate space 10 between the facade elements 2a and 2b fastening web 11 is integrally formed with a fastening channel 12 for the fastening screws 4 formed here as fastening screws.
  • a fastening channel 12 for the fastening screws 4 formed here as fastening screws.
  • At the edges of the cross bar 8 also outwardly projecting ribs 13 are integrally formed, which engage for holding the inner seal 5 in the manner of a clip connection in corresponding grooves 14 of the seal 5.
  • the inner seal 5 is formed as a profile seal, which extends over the protruding fastening web 11 and the facade elements 2a and 2b facing sealing surfaces with corresponding sealing lips 15 for engagement with the facade elements 2a and 2b contains.
  • the pressure strip 3 contains on a façade elements 2a and 2b facing broadside two parallel receiving channels 16, in which the also formed as a gaskets outer seals 6 are held.
  • the outer seals 6 include sealing surfaces with sealing lips 17 for engagement with the facade elements 2a and 2b.
  • the pressure strip 3 is screwed to the support element 1 via the helical fastening elements 4.
  • the fastening elements 4 engage in the fastening channel 12 in the fastening web 11.
  • an outer cover strip 18 can be placed with a kind of clip connection.
  • the pressure strip 3 expediently consists of a two-component plastic with a softer core 19 made of foam material and a harder outer part 20.
  • the outer part 20 has a projecting into the rebate 10 approach 21 on which an insulating element 22 is formed.
  • the lightweight PU foam is a good insulation achieved.
  • the support member 1 is an existing example of aluminum hollow profile with two outwardly projecting webs 23 which define an outwardly open receiving space 24 for receiving an inner Anyakrat 25.
  • the executed here as a hollow profile support member 1 also includes an inwardly projecting mounting web 26 with a mounting channel 27 for the helical fasteners 4.
  • the inner Anyakology 25 also consists of a two-component polyurethane with a softer core 28 and a harder outer part 29. In the outer part 29 recesses 30 are provided for receiving seals 31 for the system in the receiving space 24 and the facade elements 2a and 2b.
  • the facade elements 2a and 2b designed as insulating glass panes are fastened to the support element 1 with the aid of a pressure strip 3 and fixing elements 4 designed as fastening screws.
  • the construction of the pressure strip 3 substantially corresponds to the embodiment of FIG. 1 , so that corresponding components are also provided with the same reference numerals.
  • the projecting into the rebate 10 approach 21 is completely surrounded by the insulating element 22.
  • the insulating element 22 does not reach the inner pressure strip 25, while the insulating element 22 in the execution of FIG. 1 extends to the inner seal 5 and the support element 1.
  • FIG. 3 embodiment shown differs from the embodiment of the FIG. 2 by the configuration of the outer pressure strip 3.
  • the core 19 is not completely enclosed by the outer part 20.
  • the insulating element 22 is connected to the core and is surrounded only in the rear region by the projection 21 on the outer part 20.
  • a distance between the inner end of Dämmelements 22 and the inner pressure bar 25 is present.
  • FIG. 4 illustrated embodiment corresponds essentially to the execution of FIG. 2 , While at the FIG. 2 the insulating element 22 is arranged on the here peg-shaped projection 21, the insulating element 22 in the execution of FIG. 4 Surrounded in the rear area of the projection 21 on the outer part 20, as in the embodiments of FIGS. 1 and 3 the case is. Otherwise, the embodiment corresponds to the embodiments described above, so that corresponding components are provided with the corresponding reference numerals.
  • the insulating element 22 is not arranged on the outer pressure bar 3, but on the inner pressure bar 25.
  • the outer part 29 of the pressure strip has a projecting into the rebate 10 approach 32 to which the insulating element 22 is foamed.
  • the outer pressure strip 3 can be designed without attachment 21 and insulating element 22 as in the previously described examples.
  • the support element 1 is made of a two-component polyurethane with a softer core 33 and a harder outer part 34.
  • a support profile 35 is embedded with a screw 36.
  • the support member 1 also has recesses 37 for receiving seals 38.
  • the pressure strip 3 with the insulating element 22 formed thereon is like in the embodiment of FIG. 2 executed.

Abstract

The strip (3) has a core (19) made of foam material i.e. lightweight polyurethane foam, and an outer part (20) surrounding the core, where the strip is formed as a plastic profile. The outer part exhibits high hardness with respect to the core. The outer part is made of polyurethane mixture of hard-PVC. The core and the outer part exhibit preset heat conductivity. An insulating element (22) projects into a folding chamber (10) between facade elements (2a, 2b) i.e. glass panes. The insulating element is connected with the core.

Description

Die Erfindung betrifft eine Andruckleiste für eine Fassadenkonstruktion und eine Fassadenkonstruktion mit einer derartigen Andruckleiste.The invention relates to a pressure strip for a facade construction and a facade construction with such a pressure strip.

Andruckleisten der eingangs genannten Art werden z.B. zur Befestigung von Glasscheiben oder anderen Fassadenelementen an Tragelementen von Fassaden- und Wintergartensystemen in einer Pfosten/Riegel-Konstruktion eingesetzt. Sie weisen in der Regel eine oder mehrere Aufnahmenuten für Dichtungen und Durchgänge für Schrauben oder andere Befestigungselemente auf. Bei den bisher bekannten Ausführungen werden die Andruckleisten üblicherweise aus Thermoplast oder aus Aluminium hergestellt. Andruckleisten aus Aluminium weisen zwar eine hohe Festigkeit auf, besitzen jedoch nur schlechte Wärmedämmeigenschaften, so dass zur Verbesserung der Wärmedämmung immer zusätzliche Dämmelemente an den Andruckleisten angebracht werden müssen. Aus Thermoplast bestehende Andruckleisten sind dagegen hitzeanfällig und sind für die bei Verschraubungen auftretenden dauernden Punktbelastungen nur bedingt geeignet. Ein weiterer Nachteil besteht darin, dass diese nicht einstückig mit entsprechend dämmenden Kunststoffen hergestellt werden können.Pressure strips of the type mentioned above are e.g. used for fastening glass panes or other facade elements to supporting elements of facade and conservatory systems in a mullion / transom construction. They usually have one or more grooves for seals and passages for screws or other fasteners. In the previously known embodiments, the pressure bars are usually made of thermoplastic or aluminum. Although pressure bars made of aluminum have a high strength, but have only poor thermal insulation properties, so that always additional insulation elements must be attached to the pressure bars to improve the thermal insulation. On the other hand, thermoplastic pressure strips are susceptible to heat and are only of limited suitability for the permanent point loads occurring in screw connections. Another disadvantage is that they can not be manufactured in one piece with correspondingly insulating plastics.

Aus der EP 1 596 022 A2 ist eine Andruckleiste für eine Gebäudefassade oder ein Dach bekannt, bei der eine Dämmleiste und eine Dichtleiste einstückig mit der Andrückleiste ausgebildet sind. Die Dämmleiste, die Dichtleisten und die Andruckleiste sind aus einem gummiartigen Material oder aus Thermoplast hergestellt.From the EP 1 596 022 A2 a pressure strip for a building facade or a roof is known in which an insulating strip and a sealing strip are formed integrally with the pressure strip. The insulating strip, the sealing strips and the pressure strip are made of a rubber-like material or of thermoplastic material.

Aufgabe der Erfindung ist es, eine Andruckleiste für eine Fassadenkonstruktion und eine Fassadenkonstruktion mit einer derartigen Andruckleiste zu schaffen, die eine verbesserte Wärmedämmung ermöglichen.The object of the invention is to provide a pressure strip for a facade construction and a facade construction with such a pressure strip, which allow improved thermal insulation.

Diese Aufgabe wird durch eine Andruckleiste mit den Merkmalen des Anspruchs 1 und durch eine Fassadenkonstruktion mit den Merkmalen des Anspruchs 12 gelöst. Zweckmäßige Weiterbildungen und vorteilhafte Ausführungsformen der Erfindung sind Gegenstand der Unteransprüche.This object is achieved by a pressure strip with the features of claim 1 and by a facade construction with the features of claim 12. expedient Further developments and advantageous embodiments of the invention are the subject of the dependent claims.

Die erfindungsgemäße Andruckleiste ist als Kunststoffprofil mit einem aus Schaummaterial bestehenden Kern und einem den Kern umgebenden Außenteil ausgebildet, wobei der Außenteil eine gegenüber dem Kern höhere Härte aufweist. Der z.B. aus Polyurethanschaum bestehende Kern weist eine geringe Leitfähigkeit auf und ermöglicht daher eine gute Wärmedämmung. Der aus einem härteren Material bestehende Außenteil sorgt dagegen für die erforderliche Stabilität und sichert die zur Befestigung erforderlichen mechanischen Eigenschaften. Der Kern kann durch Einbringen eines geeigneten aushärtenden Schaumaterials in eine erste Form hergestellt werden. Nach dem Aushärten kann der so erzeugte Schaumstoffkern in eine weitere Form zur Herstellung des den Kern umgebenden Außenteils eingelegt werden.The pressure strip according to the invention is designed as a plastic profile with a core made of foam material and an outer part surrounding the core, wherein the outer part has a relation to the core higher hardness. The e.g. made of polyurethane foam core has a low conductivity and therefore allows good thermal insulation. On the other hand, the outer part made of a harder material provides the required stability and secures the mechanical properties required for fastening. The core can be made by introducing a suitable thermosetting foam material into a first mold. After curing, the foam core thus produced can be inserted into a further mold for producing the outer part surrounding the core.

Der Kern besteht vorzugsweise aus leichtem PU-Schaum mit einer Wärmeleitfähigkeit von λ = 0,02 bis 0,06 W/m2K, bevorzugt 0,025 W/m2K, Dadurch wird eine gute Dämmung erreicht. Der harte Außenteil, der vorzugsweise aus einer schwereren PU-Mischung mit einer Härte ähnlich von Hart PVC und einer Wärmeleitfähigkeit von λ = 0,15 bis 0,6 W/m2K besteht, sorgt dagegen für die erforderliche Festigkeit und Stabilität.The core is preferably made of lightweight PU foam with a thermal conductivity of λ = 0.02 to 0.06 W / m 2 K, preferably 0.025 W / m 2 K, thus a good insulation is achieved. The hard outer part, which preferably consists of a heavier PU mixture with a hardness similar to hard PVC and a thermal conductivity of λ = 0.15 to 0.6 W / m 2 K, on the other hand provides the required strength and stability.

In einer besonders vorteilhaften Ausführung kann die Andruckleiste ein angeformtes Dämmelement aufweisen, das in einen Falzraum zwischen den Fassadenelementen ragt. Das Dämmelement besteht zweckmäßigerweise ebenfalls aus einem aushärtenden Polyurethanschaum oder einem anderen gut dämmenden Schaummaterial und kann an einen Ansatz des Außenteils angeschäumt sein. In einer alternativen Ausführung können der Kern und das Dämmelement miteinander verbunden und zusammen geschäumt sein.In a particularly advantageous embodiment, the pressure strip may have a molded-on insulating element which projects into a rebate space between the facade elements. The insulating element is expediently also made of a hardening polyurethane foam or other well-insulating foam material and may be foamed to an approach of the outer part. In an alternative embodiment, the core and the insulating element may be interconnected and foamed together.

Die Andruckleiste kann sowohl an der Innen- als auch an der Außenseite der Fassadenelemente angeordnet und mit Dichtungen versehen sein.The pressure bar can be arranged both on the inside and on the outside of the facade elements and provided with seals.

Eine vorstehend beschriebene Andruckleiste kann bei einer Fassadenkonstruktion für die Befestigung der z.B. als Isolierglaselemente ausgeführten Fassadenelemente an einemAn Andruckleiste described above can in a facade construction for the attachment of the example designed as insulating glass facade elements on a

Tragelement zum Einsatz gelangen. Die Andruckleiste kann sowohl an der Innen- als auch Außenseite der Fassadenelemente angeordnet und mit Dichtungen versehen sein.Get support element used. The pressure bar can be arranged both on the inside and outside of the facade elements and provided with seals.

Weitere Besonderheiten und Vorzüge der Erfindung ergeben sich aus der folgenden Beschreibung bevorzugter Ausführungsbeispiele anhand der Zeichnung. Es zeigen:

Figur 1
ein erstes Ausführungsbeispiel einer Fassadenkonstruktion mit einem Tragelement und einer Andruckleiste im Schnitt;
Figur 2
ein zweites Ausführungsbeispiel einer Fassadenkonstruktion mit einem Tragelement und einer Andruckleiste im Schnitt;
Figur 3
ein drittes Ausführungsbeispiel einer Fassadenkonstruktion mit einem Tragelement und einer Andruckleiste im Schnitt;
Figur 4
ein viertes Ausführungsbeispiel einer Fassadenkonstruktion mit einem Tragelement und einer Andruckleiste im Schnitt;
Figur 5
ein fünftes Ausführungsbeispiel einer Fassadenkonstruktion mit einem Tragelement und einer Andruckleiste im Schnitt und
Figur 6
ein sechstes Ausführungsbeispiel einer Fassadenkonstruktion mit einem Tragelement und einer Andruckleiste im Schnitt.
Other features and advantages of the invention will become apparent from the following description of preferred embodiments with reference to the drawings. Show it:
FIG. 1
a first embodiment of a facade construction with a support member and a pressure strip in section;
FIG. 2
a second embodiment of a facade construction with a support member and a pressure strip in section;
FIG. 3
a third embodiment of a facade construction with a support member and a pressure strip in section;
FIG. 4
a fourth embodiment of a facade construction with a support member and a pressure strip in section;
FIG. 5
a fifth embodiment of a facade construction with a support member and a pressure strip in section and
FIG. 6
a sixth embodiment of a facade construction with a support element and a pressure strip in section.

Die in den Figuren 1 bis 6 dargestellten Fassadenkonstruktionen enthalten ein als Tragprofil ausgeführtes Tragelement 1, an dem zwei als Isolierglasscheiben ausgeführte Fassadenelemente 2a und 2b mit Hilfe einer Andruckleiste 3 und hier als Befestigungsschrauben ausgebildeten Befestigungselementen 4 über innere und äußere Dichtungen 5 und 6 abgedichtet befestigt sind. Das Tragelement 1 bildet z.B. einen Pfosten oder Riegel einer Pfosten-Riegel-Konstruktion, mit der Fassaden, Wintergärten, Dachkonstruktionen oder dgl. herstellbar sind. Die Fassadenelemente 2a und 2b sind bei den gezeigten Ausführungen als Isolierglasscheiben mit mehreren über Abstandshalter 7 voneinander beabstandeten Glasscheiben 8 ausgeführt. Anstelle von Isolierglasscheiben können mit Hilfe der Andruckleisten 3 jedoch auch andere Fassadenelemente an dem Tragelement 1 gehalten werden.The in the FIGS. 1 to 6 Facade structures shown include a designed as a support profile support member 1, are attached to the two executed as insulating glass panels facade elements 2a and 2b sealed by means of a pressure strip 3 and here as fastening screws fasteners 4 via inner and outer seals 5 and 6. The support member 1 forms, for example, a post or bar of a post-and-beam construction, with the facades, conservatories, roof structures or the like. Can be produced. The facade elements 2a and 2b are executed in the embodiments shown as insulating glass panes with a plurality of spacers 7 spaced from each other glass sheets 8. Instead of insulating glass panes However, other facade elements can be held on the support element 1 with the help of 3 Andruckleisten.

Das in Figur 1 gezeigte Tragelement 1 enthält einen den Fassadenelementen 2a und 2b zugewandten Quersteg 9, an dem ein in einen Falzraum 10 zwischen den Fassadenelementen 2a und 2b ragender Befestigungssteg 11 mit einem Befestigungskanal 12 für die hier als Befestigungsschrauben ausgebildeten Befestigungselemente 4 angeformt ist. An den Rändern des Querstegs 8 sind außerdem nach außen vorstehende Rippen 13 angeformt, die zur Halterung der inneren Dichtung 5 in Art einer Klippverbindung in entsprechende Nuten 14 der Dichtung 5 eingreifen. Die innere Dichtung 5 ist als Profildichtung ausgebildet, die über den vorstehenden Befestigungssteg 11 verläuft und den Fassadenelementen 2a und 2b zugewandte Dichtflächen mit entsprechenden Dichtlippen 15 zur Anlage an den Fassadenelementen 2a und 2b enthält.This in FIG. 1 shown support member 1 includes a facade elements 2a and 2b facing transverse web 9, on which a projecting into a rebate space 10 between the facade elements 2a and 2b fastening web 11 is integrally formed with a fastening channel 12 for the fastening screws 4 formed here as fastening screws. At the edges of the cross bar 8 also outwardly projecting ribs 13 are integrally formed, which engage for holding the inner seal 5 in the manner of a clip connection in corresponding grooves 14 of the seal 5. The inner seal 5 is formed as a profile seal, which extends over the protruding fastening web 11 and the facade elements 2a and 2b facing sealing surfaces with corresponding sealing lips 15 for engagement with the facade elements 2a and 2b contains.

Die Andruckleiste 3 enthält an einer den Fassadenelementen 2a und 2b zugewandten Breitseite zwei parallele Aufnahmekanäle 16, in denen die ebenfalls als Profildichtungen ausgebildeten äußeren Dichtungen 6 gehalten sind. Auch die äußeren Dichtungen 6 enthalten Dichtflächen mit Dichtlippen 17 zur Anlage an den Fassadenelementen 2a und 2b. Die Andruckleiste 3 wird über die schraubenförmigen Befestigungselemente 4 mit dem Tragelement 1 verschraubt. Die Befestigungselemente 4 greifen hierzu in den Befestigungskanal 12 im Befestigungssteg 11 ein. Auf die Andruckleiste 3 ist eine äußere Abdeckleiste 18 mit einer Art Clipverbindung aufsetzbar.The pressure strip 3 contains on a façade elements 2a and 2b facing broadside two parallel receiving channels 16, in which the also formed as a gaskets outer seals 6 are held. The outer seals 6 include sealing surfaces with sealing lips 17 for engagement with the facade elements 2a and 2b. The pressure strip 3 is screwed to the support element 1 via the helical fastening elements 4. For this purpose, the fastening elements 4 engage in the fastening channel 12 in the fastening web 11. On the pressure strip 3, an outer cover strip 18 can be placed with a kind of clip connection.

Zur Erreichung guter Dämmeigenschaften besteht die Andruckleiste 3 zweckmäßigerweise aus einem Zweikomponenten-Kunststoff mit einem weicheren Kern 19 aus Schaummaterial und einem härteren Außenteil 20. Der Außenteil 20 weist einen in den Falzraum 10 ragenden Ansatz 21 auf, an dem ein Dämmelement 22 angeformt ist. Der weichere Kern 19 und das Dämmelement 22 bestehen vorzugsweise aus leichtem PU-Schaum mit einer Wärmeleitfähigkeit von λ = 0,02 bis 0,06 W/m2K, bevorzugt 0,025 W/m2K. Durch den leichten PU-Schaum wird eine gute Dämmung erreicht. Der härtere Außenteil 20 besteht zweckmäßigerweise aus einer PU-Mischung mit einer Härte ähnlich von Hart-PVC und weist vorzugsweise eine Wärmeleitfähigkeit von λ = 0,15 bis 0,6 W/m2K auf. Durch den härteren Außenteil 20 wird die erforderliche Stabilität der Abdruckleiste 3 erreicht.To achieve good insulation properties, the pressure strip 3 expediently consists of a two-component plastic with a softer core 19 made of foam material and a harder outer part 20. The outer part 20 has a projecting into the rebate 10 approach 21 on which an insulating element 22 is formed. The softer core 19 and the insulating element 22 are preferably made of lightweight PU foam having a thermal conductivity of λ = 0.02 to 0.06 W / m 2 K, preferably 0.025 W / m 2 K. The lightweight PU foam is a good insulation achieved. The harder outer part 20 expediently consists of a PU mixture with a hardness similar to hard PVC and preferably has a thermal conductivity of λ = 0.15 to 0.6 W / m 2 K. Due to the harder outer part 20, the required stability of the impression bar 3 is achieved.

Bei dem in Figur 2 gezeigten zweiten Ausführungsbeispiel ist das Tragelement 1 ein z.B. aus Aluminium bestehendes Hohlprofil mit zwei nach außen vorstehenden Stegen 23, die einen nach außen offenen Aufnahmeraum 24 für die Aufnahme einer inneren Andruckleiste 25 begrenzen. Das hier als Hohlprofil ausgeführte Tragelement 1 enthält außerdem einen nach innen ragenden Befestigungssteg 26 mit einem Befestigungskanal 27 für die schraubenförmigen Befestigungselemente 4. Die innere Andruckleiste 25 besteht ebenfalls aus einem Zweikomponenten-Polyurethan mit einem weicheren Kern 28 und einem härteren Außenteil 29. In dem Außenteil 29 sind Vertiefungen 30 zur Aufnahme von Dichtungen 31 für die Anlage im Aufnahmeraum 24 und an den Fassadenelementen 2a und 2b vorgesehen. Der weichere Kern 19 und das Dämmelement 22 bestehen auch hier vorzugsweise aus leichtem PU-Schaum mit einer Wärmeleitfähigkeit von λ = 0,02 bis 0,06 W/m2K, bevorzugt 0,025 W/m2K. Der härtere Außenteil 20 besteht zweckmäßigerweise aus einer schwereren PU-Mischung mit einer Härte im Bereich von Hart-PVC und weist vorzugsweise eine Wärmeleitfähigkeit von λ = 0,15 bis 0,6 W/m2K auf.At the in FIG. 2 shown second embodiment, the support member 1 is an existing example of aluminum hollow profile with two outwardly projecting webs 23 which define an outwardly open receiving space 24 for receiving an inner Andruckleiste 25. The executed here as a hollow profile support member 1 also includes an inwardly projecting mounting web 26 with a mounting channel 27 for the helical fasteners 4. The inner Andruckleiste 25 also consists of a two-component polyurethane with a softer core 28 and a harder outer part 29. In the outer part 29 recesses 30 are provided for receiving seals 31 for the system in the receiving space 24 and the facade elements 2a and 2b. The softer core 19 and the insulating element 22 are also here preferably made of lightweight PU foam with a thermal conductivity of λ = 0.02 to 0.06 W / m 2 K, preferably 0.025 W / m 2 K. The harder outer part 20 is suitably from a heavier PU mixture with a hardness in the range of hard PVC and preferably has a thermal conductivity of λ = 0.15 to 0.6 W / m 2 K.

Auch bei der in Figur 2 dargestellten Ausführung werden die als Isolierglasscheiben ausgeführte Fassadenelemente 2a und 2b mit Hilfe einer Andruckleiste 3 und als Befestigungsschrauben ausgebildeten Befestigungselementen 4 an dem Tragelement 1 befestigt. Der Aufbau der Andruckleiste 3 entspricht im Wesentlichen der Ausführungsform von Figur 1, so dass einander entsprechende Bauteile auch mit denselben Bezugszeichen versehen sind. Im Unterschied zur Ausführungsform von Figur 1 wird der in den Falzraum 10 ragende Ansatz 21 vollständig von dem Dämmelement 22 umgeben. Außerdem reicht das Dämmelement 22 nicht bis zur inneren Andruckleiste 25 heran, während das Dämmelement 22 bei der Ausführung von Figur 1 bis zur inneren Dichtung 5 bzw. zum Tragelement 1 reicht.Also at the in FIG. 2 In the embodiment shown, the facade elements 2a and 2b designed as insulating glass panes are fastened to the support element 1 with the aid of a pressure strip 3 and fixing elements 4 designed as fastening screws. The construction of the pressure strip 3 substantially corresponds to the embodiment of FIG FIG. 1 , so that corresponding components are also provided with the same reference numerals. In contrast to the embodiment of FIG. 1 the projecting into the rebate 10 approach 21 is completely surrounded by the insulating element 22. In addition, the insulating element 22 does not reach the inner pressure strip 25, while the insulating element 22 in the execution of FIG. 1 extends to the inner seal 5 and the support element 1.

Die in Figur 3 gezeigte Ausführung unterscheidet sich von dem Ausführungsbeispiel der Figur 2 durch die Ausgestaltung der äußeren Anpressleiste 3. Bei dieser Ausführung ist der Kern 19 nicht vollständig von dem Außenteil 20 umschlossen. Das Dämmelement 22 ist mit dem Kern verbunden und wird nur im hinteren Bereich vom Ansatz 21 am Außenteil 20 umgeben. Wie bei der Ausführung von Figur 2 ist auch hier ein Abstand zwischen dem inneren Ende des Dämmelements 22 und der inneren Andruckleiste 25 vorhanden.In the FIG. 3 embodiment shown differs from the embodiment of the FIG. 2 by the configuration of the outer pressure strip 3. In this embodiment, the core 19 is not completely enclosed by the outer part 20. The insulating element 22 is connected to the core and is surrounded only in the rear region by the projection 21 on the outer part 20. As with the execution of FIG. 2 Here is a distance between the inner end of Dämmelements 22 and the inner pressure bar 25 is present.

Das in Figur 4 dargestellte Ausführungsbeispiel entspricht im Wesentlichen der Ausführung von Figur 2. Während bei der Figur 2 das Dämmelement 22 auf dem hier zapfenförmigen Ansatz 21 angeordnet ist, wird das Dämmelement 22 bei der Ausführung von Figur 4 im hinteren Bereich vom Ansatz 21 am Außenteil 20 umgeben, wie dies auch bei den Ausführungen der Figuren 1 und 3 der Fall ist. Ansonsten entspricht die Ausführung den zuvor beschriebenen Ausführungsbeispielen, so dass einander entsprechende Bauteile mit den entsprechenden Bezugszeichen versehen sind.This in FIG. 4 illustrated embodiment corresponds essentially to the execution of FIG. 2 , While at the FIG. 2 the insulating element 22 is arranged on the here peg-shaped projection 21, the insulating element 22 in the execution of FIG. 4 Surrounded in the rear area of the projection 21 on the outer part 20, as in the embodiments of FIGS. 1 and 3 the case is. Otherwise, the embodiment corresponds to the embodiments described above, so that corresponding components are provided with the corresponding reference numerals.

Bei der in Figur 5 gezeigten Ausführung ist das Dämmelement 22 nicht an der äußeren Andruckleiste 3, sondern an der inneren Andruckleiste 25 angeordnet. Der Außenteil 29 der Andruckleiste weist einen in den Falzraum 10 ragenden Ansatz 32 auf, an den das Dämmelement 22 angeschäumt ist. Die äußere Andruckleiste 3 kann dagegen ohne Ansatz 21 und Dämmelement 22 wie bei den zuvor beschriebenen Beispielen ausgeführt sein.At the in FIG. 5 As shown embodiment, the insulating element 22 is not arranged on the outer pressure bar 3, but on the inner pressure bar 25. The outer part 29 of the pressure strip has a projecting into the rebate 10 approach 32 to which the insulating element 22 is foamed. On the other hand, the outer pressure strip 3 can be designed without attachment 21 and insulating element 22 as in the previously described examples.

In Figur 6 ist ein weiteres Ausführungsbeispiel gezeigt. Bei dieser Ausführung ist auch das Tragelement 1 aus einem Zweikomponenten-Polyurethan mit einem weicheren Kern 33 und einem härteren Außenteil 34 hergestellt. In den Kern 33 ist ein Tragprofil 35 mit einem Schraubkanal 36 eingebettet. Das Tragelement 1 weist außerdem Vertiefungen 37 für die Aufnahme von Dichtungen 38 auf. Die Andruckleiste 3 mit dem daran angeformten Dämmelement 22 ist wie bei dem Ausführungsbeispiel von Figur 2 ausgeführt.In FIG. 6 another embodiment is shown. In this embodiment, the support element 1 is made of a two-component polyurethane with a softer core 33 and a harder outer part 34. In the core 33, a support profile 35 is embedded with a screw 36. The support member 1 also has recesses 37 for receiving seals 38. The pressure strip 3 with the insulating element 22 formed thereon is like in the embodiment of FIG. 2 executed.

Claims (15)

Andruckleiste (3; 25) zur Befestigung zweier Fassadenelemente (2a, 2b) an einem Tragelement (1), insbesondere einer Pfosten-Riegel-Fassade, dadurch gekennzeichnet, dass die Andruckleiste (3; 25) als Kunststoffprofil mit einem aus Schaummaterial bestehenden Kern (19; 28) und einem den Kern umgebenden Außenteil (20; 29) ausgebildet ist, wobei der Außenteil (20; 29) eine gegenüber dem Kern (19) höhere Härte aufweist.Pressure strip (3; 25) for fastening two facade elements (2a, 2b) to a support element (1), in particular a mullion-transom façade, characterized in that the pressure strip (3; 25) as a plastic profile with a foam material core (3). 19; 28) and an outer part (20; 29) surrounding the core, wherein the outer part (20; 29) has a higher hardness compared to the core (19). Andruckleiste nach Anspruch 1, dadurch gekennzeichnet, dass der Kern (19; 28) aus einem leichten Polyurethanschaum und der Außenteil (20; 29) aus einer Polyurethanmischung mit einer Härte im Bereich von Hart-PVC besteht.A pressure strip according to claim 1, characterized in that the core (19; 28) consists of a light polyurethane foam and the outer part (20; 29) consists of a polyurethane mixture having a hardness in the range of hard PVC. Andruckleiste nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Kern (19; 28) eine Wärmeleitfähigkeit von λ = 0,02 bis 0,06 W/m2K, bevorzugt 0,025 W/m2K, aufweist.Pressure strip according to claim 1 or 2, characterized in that the core (19; 28) has a thermal conductivity of λ = 0.02 to 0.06 W / m 2 K, preferably 0.025 W / m 2 K. Andruckleiste nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, dass der Außenteil (20; 29) eine Wärmeleitfähigkeit von λ = 0,15 bis 0,6 W/m2K aufweist.Pressure strip according to one of claims 1 to 3, characterized in that the outer part (20; 29) has a thermal conductivity of λ = 0.15 to 0.6 W / m 2 K. Andruckleiste nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass sie ein in einen Falzraum (10) zwischen den Fassadenelementen (2a, 2b) ragendes Dämmelement (22 ) aufweist.Pressure strip according to one of claims 1 to 4, characterized in that it has a in a rebate space (10) between the facade elements (2a, 2b) projecting insulating element (22). Andruckleiste nach Anspruch 5, dadurch gekennzeichnet, dass das Dämmelement (22) an einen Ansatz (21) des Außenteils (20) angeschäumt ist.Pressure strip according to claim 5, characterized in that the insulating element (22) to a projection (21) of the outer part (20) is foamed. Andruckleiste nach Anspruch 5 oder 6, dadurch gekennzeichnet, dass das Dämmelement (22) von dem Kern (19) getrennt an dem Außenteil (20) angeschäumt ist.Pressure strip according to claim 5 or 6, characterized in that the insulating element (22) of the core (19) is foamed separately on the outer part (20). Andruckleiste nach einem der Ansprüche 5 bis 7, dadurch gekennzeichnet, dass das Dämmelement (22) mit dem Kern (19) verbunden ist.Pressure bar according to one of claims 5 to 7, characterized in that the insulating element (22) is connected to the core (19). Andruckleiste nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, dass das Dämmelement (22) aus einem Schaummaterial mit einer Wärmeleitfähigkeit von λ = 0,02 bis 0,06 W/m2K, bevorzugt 0,025 W/m2K, besteht.Pressure strip according to one of claims 1 to 8, characterized in that the insulating element (22) consists of a foam material with a thermal conductivity of λ = 0.02 to 0.06 W / m 2 K, preferably 0.025 W / m 2 K. Andruckleiste nach einem der Ansprüche 1 bis 9, dadurch gekennzeichnet, dass in dem Außenteil (20; 29) Aufnahmekanäle (16; 30) für Dichtungen (6; 31) vorgesehen sind.Pressure bar according to one of claims 1 to 9, characterized in that in the outer part (20; 29) receiving channels (16; 30) for seals (6; 31) are provided. Andruckleiste nach einem der Ansprüche 1 bis 10, dadurch gekennzeichnet, dass sie an der Innenseite und/oder der Außenseite der Fassadenelemente (2a, 2b) angeordnet ist.Pressure bar according to one of claims 1 to 10, characterized in that it is arranged on the inside and / or the outside of the facade elements (2a, 2b). Fassadenkonstruktion mit einem Tragelement (1) und einer Andruckleiste (3) zur Befestigung zweier Fassadenelemente (2a, 2b) an dem Tragelement (1), dadurch gekennzeichnet, dass die Andruckleiste (3) nach einem der Ansprüche 1 bis 11 ausgebildet ist.Facade structure with a support element (1) and a pressure strip (3) for fastening two facade elements (2a, 2b) on the support element (1), characterized in that the pressure strip (3) is designed according to one of claims 1 to 11. Fassadenkonstruktion nach Anspruch 12, dadurch gekennzeichnet, dass das Tragelement (1) einen nach außen offenen Aufnahmeraum (24) für eine innere Andruckleiste (25) nach einem der Ansprüche 1 bis 11 enthält.Facade structure according to claim 12, characterized in that the support element (1) has an outwardly open receiving space (24) for an inner pressure strip (25) according to one of claims 1 to 11. Fassadenkonstruktion nach Anspruch 12 oder 13, dadurch gekennzeichnet, dass das Tragelement (1) aus Kunststoff mit einem aus Schaummaterial bestehenden Kern (33) und einem den Kern umgebenden Außenteil (34) ausgebildet ist, wobei der Außenteil (34) eine gegenüber dem Kern (19) höhere Härte aufweist.Facade structure according to claim 12 or 13, characterized in that the support element (1) made of plastic with a foam material Core (33) and an outer part surrounding the core (34) is formed, wherein the outer part (34) has a relation to the core (19) higher hardness. Fassadenkonstruktion nach einem der Ansprüche 12 bis 14, dadurch gekennzeichnet, dass in dem Tragelement (1) ein Tragprofil (35) mit einem Schraubkanal (36) eingebettet ist.Facade structure according to one of claims 12 to 14, characterized in that in the support element (1) is embedded a support profile (35) with a screw channel (36).
EP11151676.1A 2010-01-23 2011-01-21 Application of a pressure bar for a façade structure and façade structure comprising such a pressure bar Active EP2348164B1 (en)

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